US Bridges

Mn 19 over Sulpher Lake

Fair

Redwood County, Minnesota · 5.8 MI E of JCT TH 71 · Structure no. 64009

Built
1997
28 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
315 ft
3 main spans
Daily traffic
5,343
2022 count
Owner
State
State Highway Agency

About this bridge

Mn 19 over Sulpher Lake is a prestressed concrete stringer/multi-beam or girder carrying Mn 19 over Sulpher Lake in Redwood County, Minnesota. It was built in 1997, so it is 28 years old, younger than the Minnesota average of 38.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,343 vehicles a day, roughly 13% of them trucks, projected to reach 6,600 by 2042. The structure is 315 ft (96 m) long and 51 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesMn 19
CrossesSulpher Lake
Location5.8 MI E of JCT TH 71
RouteState Highway 19
CountyRedwood County
StateMinnesota
Coordinates44.54126, -95.00248
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.3 US tons
Inventory rating52.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length315 ft (96 m)
Longest span103 ft (31.3 m)
Deck width51 ft (15.6 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,343 (2022)
Projected traffic6,600 by 2042
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Mn 19 over Sulpher Lake built?

It was built in 1997, making it 28 years old in 2025.

What condition is Mn 19 over Sulpher Lake in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Mn 19 over Sulpher Lake carry?

About 5,343 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Mn 19 over Sulpher Lake?

The structure is 315 ft (96 m) long with a longest span of 103 ft (31.3 m) and a deck 51 ft wide.

Who owns Mn 19 over Sulpher Lake?

It is owned by the State Highway Agency.